Design characteristics of the Myosa® for Juniors

  1. High sides provide good retention.

  2. Breathing holes open the airway and regulate breathing through the mouth.

  3. Tongue tag guides the tongue forwards and upwards into the correct position.

  4. Tongue elevator holds the tongue in the correct position.

  5. Air spring base to open airway and advance the mandible.

  6. Advances the mandible to reduce airway collapsibility.

How the Myosa® for Juniors works

Myosa® for Juniors is a small sized myofunctional sleep appliance for children aged between two and six years old. Rather than allow sleep breathing problems to persist into adulthood, the Myosa® for Juniors corrects SDB early by addressing the upper airway compromise and neuromuscular dysfunction, which causes these issues. It works by correcting the lower jaw position to open the airway, regulating the breathing and posturing the tongue in the upper jaw. Progress to the Myobrace®  K1 after nasal breathing has been established.

Available in Pink and Blue

Patient Selection
The paediatric Myosa® appliances begin to transition a child from mouth breathing to nasal breathing. The decision to move onto the next stage is based on a combination of the patient retaining their Myosa® appliance overnight and also an improvement of their Breathing and Disordered Sleep symptoms. Simultaneous to the use of the Myosa® appliances, patients must also complete a series of activities that address breathing dysfunction and tongue posture (known as Myosa® Activities), combined with continual use of the Myotalea® appliance throughout treatment. As always, the full protocol is outlined in MRC’s courses and attendance is highly recommended. Additionally, you can download the Myosa® appliance protocol.


Indications for use
Prior to using the Myosa® appliance the treating dentist may refer the patient to a medical practitioner for assessment of sleep disorders that have medical implications. The Myosa® for Juniors serves as both a diagnostic tool and initial treatment modality and can determine the effectiveness of intra-oral appliances. Once accustomed, it should be used for 1 hour per day and overnight while sleeping.


Instructions for use


Do not chew on Myosa® appliance. Progess to the Myobrace® K1 for the final stage of Myosa® treatment to establish nasal breathing and habit correction.


Cleaning your Myosa®
The Myosa® for Juniors appliance should be cleaned under warm running water every time the patient removes it from their mouth. Use Myoclean™ tablets to correctly clean twice a week. Myoclean™ is the recommended cleaning agent for MRC's appliances.

Appliance use

Next Appliance

Myobrace® K1

Habit correction and jaw development.

See this appliance

Learning Resources

Myosa® Appliance Protocol

Myosa® Appliance Catalogue

Myosa® Instruction card

Important Points

Intra-oral appliances may change the position of teeth and alter the jaw relationship. Rigid Mandibular Advancement Devices (MAD) can also cause pain in the jaw joints or permanently change the bite. Because of its flexible nature the Myosa® for Juniors appliance minimises the potential for this.